CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: xfrm: prevent policy_hthresh.work from racing with netns teardown A XFRM_MSG_NEWSPDINFO request can queue the per-net work item policy_hthresh.work onto the system workqueue. The queued callback, xfrm_hash_rebuild(), retrieves the enclosing struct net via container_of(). If the net namespace is torn down before that work runs, the associated struct net may already have been freed, and xfrm_hash_rebuild() may then dereference stale memory. xfrm_policy_fini() already flushes policy_hash_work during teardown, but it does not synchronize policy_hthresh.work. Synchronize policy_hthresh.work in xfrm_policy_fini() as well, so the queued work cannot outlive the net namespace teardown and access a freed struct net.
Засегнати продукти
- Linux Linux: 880a6fab8f6ba5b5abe59ea68533202ddea1012c преди 56ea2257b83ee29a543f158159e3d1abc1e3e4fe; 880a6fab8f6ba5b5abe59ea68533202ddea1012c преди 8854e9367465d784046362698731c1111e3b39b8; 880a6fab8f6ba5b5abe59ea68533202ddea1012c преди 4e2e77843fef473ef47e322d52436d8308582a96; 880a6fab8f6ba5b5abe59ea68533202ddea1012c преди 29fe3a61bcdce398ee3955101c39f89c01a8a77e
- Linux Linux: 3.18; преди 3.18; 6.12.80 до 6.12.*; 6.18.21 до 6.18.*; 6.19.11 до 6.19.*; 7.0 до *
Вид слабост
История
- 22 април 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-31516
- https://nvd.nist.gov/vuln/detail/CVE-2026-31516
- https://git.kernel.org/stable/c/56ea2257b83ee29a543f158159e3d1abc1e3e4fe
- https://git.kernel.org/stable/c/8854e9367465d784046362698731c1111e3b39b8
- https://git.kernel.org/stable/c/4e2e77843fef473ef47e322d52436d8308582a96
- https://git.kernel.org/stable/c/29fe3a61bcdce398ee3955101c39f89c01a8a77e